Inside oven



(No'ModeL) S. HALL.

INSIDE OVEN.

No. 257,001. 7 Patented Apr. 25, 1882.

A test %mlj N, PETERS. Phntn blwgmphcr. Washmgion n C UNITED STATESPATENT ()FFICE.

SAMUEL HALL, OF CHICAGO, ILLINOIS.

INSIDE OVEN.

SPECIFICATION forming part of Letters Patent No. 257,001, dated.Apri125, 1882.

Application filed March 3, 1852.

To all whom "it may concern:

Be it known that I, SAMUEL HALL, of the city of Chicago, in the countyofOook and State of Illinois, have invented a certain new and usefulImprovement in Inside Ovens, of which the following is a'full, clear,and exact description, reference being had to the accompanying drawings,forming part of this specification.

My invention relates to a baker's oven; and it consists in theconstruction hereinafter described, whereby, after the fire has reacheda red heat, so that there are no gases or foreign matter to injure thestuff being baked, a thorough circulation of heat throughout theinterior of tlie'oven is attained.

In the drawings Figure 1 is a longitudinal section at 11, Fig. 2. Fig. 2is a crossscotion at 2 2, Fig. 1.

A represents the onti r vertical walls of the oven, B the dome, and Gthe chimney or flue.

D represents the ash-pit, E the fire-box, and D E their respectivedoors.

F represents a chamber, beneath the inside oven or baking-chamber, whichcommunicates with the fire-box.

Gr represents the inside oven, and H supporting rails or bars.

I represents ducts or passages forming com munications between thechamber F and the flue O by means of a chamber, J, in the dome.

K represents openings forming communications between the inside of thebaking-oven and the ducts I.

(No model.)

L is an opening in the top of the bakingohamber, beneath the opening ofthe flue O,

which can be closed, or partially so, by a damper, L. The opening in theflue O can likewise be regulated by a damper, O.

G is the oven-door.

The operation is as follows: When the tire is first made the damper Lwould be closed and that 0 opened, thus forming a direct draft betweenthe fire and the flue or chimney. When the lire has attained ared heatthe damper L would first be slightly opened to allow the escape of anygases or foreign matter that may have entered the baking-chamber throughthe openings K on their passage from the the to the flue. Then bothdampers are closed, and it will be seen, as shown by the arrows, thatthe heat will circulate evenly through the various passages, thechambers, and the inner oven.

I claim as my invention- The combination of chamber F, communieatingwith the fire-box, baking-chamber G,

chamber J, flue G, ducts I and K, opening L,

dampers L and G, and outer wall, A B, all made substantially as and forthe purpose set forth.

Gnonen WOODLAND, F. J. OOONNELL.

